Sediment Delivery Assessment for a Transboundary Mediterranean Catchment: The Example of Nestos River Catchment

Zarris, D; Vlastara, M; Panagoulia, D

dc.contributor.author	Zarris, D	en
dc.contributor.author	Vlastara, M	en
dc.contributor.author	Panagoulia, D	en
dc.date.accessioned	2014-03-01T01:36:59Z
dc.date.available	2014-03-01T01:36:59Z
dc.date.issued	2011	en
dc.identifier.issn	0920-4741	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21423
dc.subject	Nestos River	en
dc.subject	Rating curves	en
dc.subject	Sediment yield	en
dc.subject	Soil erosion	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Water Resources	en
dc.subject.other	Bulgaria	en
dc.subject.other	Catchment area	en
dc.subject.other	Dam site	en
dc.subject.other	Dry and wet	en
dc.subject.other	Line interpolation	en
dc.subject.other	Mean annual precipitation	en
dc.subject.other	Mediterranean catchment	en
dc.subject.other	Nestos River	en
dc.subject.other	Non-linear regression	en
dc.subject.other	North Aegean sea	en
dc.subject.other	Power forms	en
dc.subject.other	Pumped-storage	en
dc.subject.other	Rating curve	en
dc.subject.other	Rating curves	en
dc.subject.other	Reservoir sites	en
dc.subject.other	River discharge	en
dc.subject.other	Sediment delivery	en
dc.subject.other	Sediment delivery ratio	en
dc.subject.other	Sediment discharge	en
dc.subject.other	Sediment measurements	en
dc.subject.other	Sediment yield	en
dc.subject.other	Sediment yields	en
dc.subject.other	Soil erosion	en
dc.subject.other	Trans-boundary	en
dc.subject.other	Universal soil loss equation	en
dc.subject.other	Anoxic sediments	en
dc.subject.other	Dams	en
dc.subject.other	Discharge (fluid mechanics)	en
dc.subject.other	Erosion	en
dc.subject.other	Hydroelectric power plants	en
dc.subject.other	Interpolation	en
dc.subject.other	Rating	en
dc.subject.other	Rivers	en
dc.subject.other	Runoff	en
dc.subject.other	Sediment transport	en
dc.subject.other	Sedimentology	en
dc.subject.other	Soil mechanics	en
dc.subject.other	Soils	en
dc.subject.other	Suspended sediments	en
dc.subject.other	Catchments	en
dc.subject.other	catchment	en
dc.subject.other	precipitation (climatology)	en
dc.subject.other	river discharge	en
dc.subject.other	runoff	en
dc.subject.other	sediment transport	en
dc.subject.other	sediment yield	en
dc.subject.other	soil erosion	en
dc.subject.other	suspended sediment	en
dc.subject.other	Aegean Sea	en
dc.subject.other	Bulgaria	en
dc.subject.other	Greece	en
dc.subject.other	Mediterranean Sea	en
dc.subject.other	Mesta River	en
dc.title	Sediment Delivery Assessment for a Transboundary Mediterranean Catchment: The Example of Nestos River Catchment	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s11269-011-9889-8	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s11269-011-9889-8	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	Nestos River flows through Bulgaria and Greece and discharges into the North Aegean Sea. Its total catchment area is around 6,200 km2, while the mean annual precipitation and runoff are 680 mm and 40 m3/s, respectively. The Hellenic part of the catchment has undergone a substantial hydroelectric development, since two dams associated with major hydropower pumped-storage facilities are in operation. The main objective of the paper is to assess the expected sediment delivery of Nestos R. at the uppermost Thisavros reservoir site. This has been carried out by implementing the Universal Soil Loss Equation in a GIS environment for determining the mean annual soil erosion in conjunction with a suspended sediment measurement program (114 measurements in total) accomplished between 1965 and 1983 adjacent to the dam site. The sediment discharge rating curve between sediment and river discharges in a power form has been constructed using five alternative techniques, namely (a) the linear regression of the log-transformed variables, (b) the same as (a) but with the Ferguson correction, (c) different ratings for the dry and wet seasons of the year, (d) the nonlinear regression, and (e) the broken line interpolation that utilizes different rating parameters for two discharge classes. It is shown that the mean annual sediment yield is almost equal for all rating curve formulations and varies between 178.5 t km-2 and 203.4 t km-2 and the highest value results from the broken line interpolation method. Accordingly, the sediment delivery ratios vary slightly between 17% and 19% of the upstream soil erosion. © 2011 Springer Science+Business Media B.V.	en
heal.publisher	SPRINGER	en
heal.journalName	Water Resources Management	en
dc.identifier.doi	10.1007/s11269-011-9889-8	en
dc.identifier.isi	ISI:000296474900015	en
dc.identifier.volume	25	en
dc.identifier.issue	14	en
dc.identifier.spage	3785	en
dc.identifier.epage	3803	en